The series follows Deputy Chief Claudia Mares, a tough, no-nonsense police officer transferred to Palermo’s Anti-Mafia Squad after a personal tragedy linked to the Mafia. Alongside her partner, the street-smart Inspector Rosanna Abate, Mares dives deep into Sicily’s criminal underworld. Season 1 sets the stage with gripping investigations, undercover operations, and high-stakes confrontations with Cosa Nostra.